[GATT] Send prepare_authorize parameter to HAL layer.

[GATT] Send prepare_authorize parameter to HAL layer.

In GATT Server role, prepare_authorize parameter will be used
to ask authorization permission from the application when
ATT_PREPARE_WRITE_REQUEST PDU receive for the first time in case
of long write.

This patchset should be merged with the following bluetooth-frwk's
patchset in order to match API and avoid crash:
bluetooth-frwk Change-Id: Ic4397ae86760177e08ccd283e80d4526bd32e0c4

Change-Id: I93bc46151ebbe695c74b224c3a3579c6e5d0de14
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>